public Completion ExecuteStatementList(IEnumerable<Statement> statementList)
{
var c = new Completion(Completion.Normal, null, null);
Completion sl = c;
try
{
foreach (var statement in statementList)
{
c = ExecuteStatement(statement);
if (c.Type != Completion.Normal)
{
return new Completion(c.Type, c.Value.HasValue ? c.Value : sl.Value, c.Identifier);
}
sl = c;
}
}
catch(JavaScriptException v)
{
return new Completion(Completion.Throw, v.Error, null);
}
return new Completion(c.Type, c.GetValueOrDefault(), c.Identifier);
}
/// <summary>
/// http://www.ecma-international.org/ecma-262/5.1/#sec-12.10
/// </summary>
/// <param name="withStatement"></param>
/// <returns></returns>
public Completion ExecuteWithStatement(WithStatement withStatement)
{
var val = _engine.EvaluateExpression(withStatement.Object);
var obj = TypeConverter.ToObject(_engine, _engine.GetValue(val));
var oldEnv = _engine.ExecutionContext.LexicalEnvironment;
var newEnv = LexicalEnvironment.NewObjectEnvironment(_engine, obj, oldEnv, true);
_engine.ExecutionContext.LexicalEnvironment = newEnv;
Completion c;
try
{
c = ExecuteStatement(withStatement.Body);
}
catch (JavaScriptException e)
{
c = new Completion(Completion.Throw, e.Error, null);
}
finally
{
_engine.ExecutionContext.LexicalEnvironment = oldEnv;
}
return c;
}
